XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Business Segments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Segment revenue: |  |  |
Revenue | $ 3,555.2 | $ 3,117.7 |
Reimbursement Revenue | 1,664.1 | 1,501.4 |
Revenue Before Reimbursements | 1,891.1 | 1,616.3 |
Operating expenses: |  |  |
Depreciation and amortization | 42.1 | 39.3 |
Total operating expenses | 3,501.4 | 3,102.3 |
Operating income | 53.8 | 15.4 |
Equity in earnings (losses) | 13.6 | 5.6 |
Segment Reconciling Items: |  |  |
Revenue | 3,555.2 | 3,117.7 |
Total segment operating expenses before restructuring and acquisition charges | 1,836.6 | 1,596.4 |
Cost of Reimbursable Expense | 1,664.1 | 1,501.4 |
Segment Operating Expenses before Restructuring and acquisition | 3,500.7 | 3,097.8 |
Segment Reporting Information Operating Income Before Restructuring Charges | 54.5 | 19.9 |
Restructuring and acquisition charges | 0.7 | 4.5 |
Operating income | 53.8 | 15.4 |
Assets | 9,204.2 |  | $ 9,254.4
Reportable Subsegments [Member] |  |  |
Segment revenue: |  |  |
Total segment fee revenue | 1,281.5 | 1,124.0 |
Operating expenses: |  |  |
Gross contract vendor and subcontractor costs reimbursement | (606.9) | (495.0) |
Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 1,941.0 | 1,799.9 |
Reimbursement Revenue | (1,181.7) | (1,078.5) |
Revenue Before Reimbursements | 759.3 | 721.4 |
Gross contract costs | (133.1) | (131.8) |
Derivative, Gain (Loss) on Derivative, Net | 2.7 | (2.7) |
Total segment fee revenue | 623.5 | 592.3 |
Operating expenses: |  |  |
Compensation, operating and administrative expenses | 688.7 | 665.6 |
Depreciation and amortization | 24.3 | 23.5 |
Total operating expenses | 713.0 | 689.1 |
Gross contract vendor and subcontractor costs reimbursement | (133.1) | (131.8) |
Total fee based segment operating expenses | 579.9 | 557.3 |
Operating income | 46.3 | 32.3 |
Equity in earnings (losses) | 0.1 | 0.2 |
Operating Income (Loss), Including Income (Loss) from Equity Method Investments | 46.4 | 32.5 |
Segment Reconciling Items: |  |  |
Revenue | 1,941.0 | 1,799.9 |
Operating income | 46.3 | 32.3 |
Assets | 4,796.7 |  | 4,745.4
Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 783.6 | 603.2 |
Reimbursement Revenue | (156.0) | (101.9) |
Revenue Before Reimbursements | 627.6 | 501.3 |
Gross contract costs | (277.2) | (231.4) |
Total segment fee revenue | 350.4 | 269.9 |
Operating expenses: |  |  |
Compensation, operating and administrative expenses | 636.2 | 523.0 |
Depreciation and amortization | 11.4 | 10.3 |
Total operating expenses | 647.6 | 533.3 |
Gross contract vendor and subcontractor costs reimbursement | (277.2) | (231.4) |
Total fee based segment operating expenses | 370.4 | 301.9 |
Operating income | (20.0) | (32.0) |
Equity in earnings (losses) | 0.0 | 0.0 |
Operating Income (Loss), Including Income (Loss) from Equity Method Investments | (20.0) | (32.0) |
Segment Reconciling Items: |  |  |
Revenue | 783.6 | 603.2 |
Operating income | (20.0) | (32.0) |
Assets | 2,290.1 |  | 2,367.5
Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 711.3 | 626.3 |
Reimbursement Revenue | (321.6) | (316.5) |
Revenue Before Reimbursements | 389.7 | 309.8 |
Gross contract costs | (195.3) | (130.4) |
Total segment fee revenue | 194.4 | 179.4 |
Operating expenses: |  |  |
Compensation, operating and administrative expenses | 385.0 | 300.0 |
Depreciation and amortization | 5.6 | 4.8 |
Total operating expenses | 390.6 | 304.8 |
Gross contract vendor and subcontractor costs reimbursement | (195.3) | (130.4) |
Total fee based segment operating expenses | 195.3 | 174.4 |
Operating income | (0.9) | 5.0 |
Equity in earnings (losses) | 0.3 | 0.8 |
Operating Income (Loss), Including Income (Loss) from Equity Method Investments | (0.6) | 5.8 |
Segment Reconciling Items: |  |  |
Revenue | 711.3 | 626.3 |
Operating income | (0.9) | 5.0 |
Assets | 1,255.0 |  | 1,305.0
Investment Management [Member] |  |  |
Segment revenue: |  |  |
Revenue | 119.3 | 88.3 |
Reimbursement Revenue | (4.8) | (4.5) |
Revenue Before Reimbursements | 114.5 | 83.8 |
Gross contract costs | (1.3) | (1.4) |
Total segment fee revenue | 113.2 | 82.4 |
Operating expenses: |  |  |
Compensation, operating and administrative expenses | 84.6 | 68.5 |
Depreciation and amortization | 0.8 | 0.7 |
Total operating expenses | 85.4 | 69.2 |
Gross contract vendor and subcontractor costs reimbursement | (1.3) | (1.4) |
Total fee based segment operating expenses | 84.1 | 67.8 |
Operating income | 29.1 | 14.6 |
Equity in earnings (losses) | 13.2 | 4.6 |
Operating Income (Loss), Including Income (Loss) from Equity Method Investments | 42.3 | 19.2 |
Segment Reconciling Items: |  |  |
Revenue | 119.3 | 88.3 |
Operating income | 29.1 | 14.6 |
Assets | 549.5 |  | 548.6
Segment Reconciling Items [Member] |  |  |
Segment Reconciling Items: |  |  |
Assets | 312.9 |  | $ 287.9
Leasing [Member] | Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 304.5 | 299.0 |
Segment Reconciling Items: |  |  |
Revenue | 304.5 | 299.0 |
Leasing [Member] | Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 58.9 | 48.8 |
Segment Reconciling Items: |  |  |
Revenue | 58.9 | 48.8 |
Leasing [Member] | Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 37.8 | 30.6 |
Segment Reconciling Items: |  |  |
Revenue | 37.8 | 30.6 |
Capital Markets [Member] | Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 111.0 | 99.1 |
Segment Reconciling Items: |  |  |
Revenue | 111.0 | 99.1 |
Capital Markets [Member] | Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 89.3 | 60.0 |
Segment Reconciling Items: |  |  |
Revenue | 89.3 | 60.0 |
Capital Markets [Member] | Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 32.4 | 29.6 |
Segment Reconciling Items: |  |  |
Revenue | 32.4 | 29.6 |
Property & Facility Management [Member] | Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 1,183.5 | 1,049.1 |
Segment Reconciling Items: |  |  |
Revenue | 1,183.5 | 1,049.1 |
Property & Facility Management [Member] | Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 350.3 | 303.9 |
Segment Reconciling Items: |  |  |
Revenue | 350.3 | 303.9 |
Property & Facility Management [Member] | Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 519.8 | 454.0 |
Segment Reconciling Items: |  |  |
Revenue | 519.8 | 454.0 |
Project & Development Services [Member] | Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 269.6 | 290.5 |
Segment Reconciling Items: |  |  |
Revenue | 269.6 | 290.5 |
Project & Development Services [Member] | Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 222.6 | 141.7 |
Segment Reconciling Items: |  |  |
Revenue | 222.6 | 141.7 |
Project & Development Services [Member] | Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 87.0 | 77.7 |
Segment Reconciling Items: |  |  |
Revenue | 87.0 | 77.7 |
Advisory, Consulting and Other [Member] | Reportable Subsegments [Member] | Americas [Member] |  |  |
Segment revenue: |  |  |
Revenue | 72.4 | 62.2 |
Segment Reconciling Items: |  |  |
Revenue | 72.4 | 62.2 |
Advisory, Consulting and Other [Member] | Reportable Subsegments [Member] | EMEA [Member] |  |  |
Segment revenue: |  |  |
Revenue | 62.5 | 48.8 |
Segment Reconciling Items: |  |  |
Revenue | 62.5 | 48.8 |
Advisory, Consulting and Other [Member] | Reportable Subsegments [Member] | Asia Pacific [Member] |  |  |
Segment revenue: |  |  |
Revenue | 34.3 | 34.4 |
Segment Reconciling Items: |  |  |
Revenue | 34.3 | 34.4 |
Advisory Fees [Member] | Investment Management [Member] |  |  |
Segment revenue: |  |  |
Revenue | 69.9 | 62.2 |
Segment Reconciling Items: |  |  |
Revenue | 69.9 | 62.2 |
Transaction Fees & Other [Member] | Investment Management [Member] |  |  |
Segment revenue: |  |  |
Revenue | 16.7 | 14.2 |
Segment Reconciling Items: |  |  |
Revenue | 16.7 | 14.2 |
Incentive Fees [Member] | Investment Management [Member] |  |  |
Segment revenue: |  |  |
Revenue | 32.7 | 11.9 |
Segment Reconciling Items: |  |  |
Revenue | $ 32.7 | $ 11.9 |

X
- Definition The total amount of compensation and benefits, and operating, administrative and other expenses. + References No definition available. + Details
Name: | jll_CompensationOperatingAndAdministrativeExpenses
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reimbursement for contract vendor and subcontractor costs that is deducted from gross revenue. + References No definition available. + Details
Name: | jll_GrossContractVendorAndSubcontractorCostsReimbursement
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services, less vendor and subcontractor costs, which are reimbursed by the client. + References No definition available. + Details
Name: | jll_NetSegmentOperatingExpenses
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating Income (Loss), Including Income (Loss) from Equity Method Investments + References No definition available. + Details
Name: | jll_OperatingIncomeLossIncludingIncomeLossfromEquityMethodInvestments
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue Before Reimbursements + References No definition available. + Details
Name: | jll_RevenueBeforeReimbursements
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Segment Operating Expenses before Restructuring and Acquisition + References No definition available. + Details
Name: | jll_SegmentOperatingExpensesbeforeRestructuringandacquisition
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total segment operating expenses, which includes compensation, operating and administrative expenses, and depreciation and amortization. Does not include restructuring charges. + References No definition available. + Details
Name: | jll_SegmentReportingInformationOperatingExpenses
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating Income Before Restructuring Charges + References No definition available. + Details
Name: | jll_SegmentReportingInformationOperatingIncomeBeforeRestructuringCharges
Namespace Prefix: | jll_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_CostOfReimbursableExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate costs related to general contracting services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_GeneralContractorCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OperatingExpensesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate revenue from real estate operations during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_RealEstateRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Repayment received or receivable for expenses incurred on behalf of a client or customer, other than those reimbursements received by landlords from tenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 45 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=68075638&loc=d3e60722-111653 + Details
Name: | us-gaap_ReimbursementRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_RestructuringCostsAndAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationRevenueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_ReportableSubsegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EMEAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jll_InvestmentManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_LeasingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_CapitalMarketsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_PropertyFacilityManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_ProjectDevelopmentServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_AdvisoryConsultingandOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_AdvisoryFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_TransactionFeesOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jll_BusinessLineAxis=jll_IncentiveFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |